Regarding the age variable, the results showed that the level of knowledge and performance had a direct and significant relationship with increasing age before education. However, after education, the level of knowledge decreases with increasing age, and the level of performance increases. There was no significant difference between the mean scores of attitude in different ages before and after education. In this regard, the results of a study conducted by Al-Mubarak in Sudan (2016) revealed that most subjects who performed the Pop-smear test were over 30 years old [15]. Unlike the results of the present study, a study by Sheel Pakar (2020) in Nepal showed no significant relationship between age and level of knowledge. However, the mean score of attitude toward Pop-smear is higher in young people than in middle-aged people [16]. Tabeshian also showed that there is no significant relationship between knowledge and attitude toward performing Pop-smear tests before and after education. However, a significant direct relationship was found between performance and age before and after education [17]. Since learning is faster and more stable at younger ages and is associated with more challenges at older ages, the results of the present study highlight the significance of learning and improving knowledge in younger women and improving performance at any age. However, the difference between the results of the present study and those of a study by Sheel Pakar and Al-Mubarak may be due to the difference in the age range of the studied subjects and related cultural differences. Cultural and national differences can play a significant role in affecting the type of education (face-to-face, virtual, or combined) of people in different age groups.
Regarding the marital status in the present study, before and after education, married women and spouse-deceased women had a higher level of knowledge than divorced women. However, no significant relationship was observed between the mean scores of attitude and performance and marital status before and after education. In a study conducted by Miles in Peru (2021) regarding the Pop-smear test, results revealed that married women performed better than single women. According to Miles, lack of knowledge among single women is the reason for this result since most women believed this one must have at least one child to do a Pop-smear [18]. Although the study conducted by Motavali revealed the positive attitude of married women towards Pop-smear, the knowledge and performance levels of married women were very low [19]. Given what was stated, increasing knowledge in a scattered and inconsistent manner or simply having a positive attitude cannot be a definitive factor in improving performance, and knowledge should be provided to people sufficiently and fully.
The results of the present study about the contextual variable of the number of children indicated that there is only a significant relationship between the increase in the number of children and the increase in knowledge before education. However, after education, a relationship was found only between the increase in the number of children and the increase in attitude. These results are consistent with the results of a study conducted by Daher (2019) in Saudi Arabia, as it showed a significant relationship between the increase in the number of children and the increase in knowledge about the Pop-smear test [20]. Also, a study by Miles (2021) in Peru showed a significant direct relationship between increasing the number of children and increasing the levels of knowledge, attitude, and performance. It seems that mothers' motivation to take care of their child and themselves increases and their relationship with other mothers improves after the birth of a new child. These communications increase the information and motivation of mothers to receive health services. Also, the number of referrals to health centers and communication with the medical staff also increases. It increases women's knowledge about health issues [17, 18].
Based on the results of the present study about the relationship between the level of education and the variables of knowledge, attitude, and performance, the results revealed that with increasing the level of education before education, the level of knowledge and attitude increases, but the level of performance decreases. However, there was no significant relationship between the level of education and the mean scores of knowledge, attitude, and performance after education. The impact of education on a person's information is obvious so the lowest level of knowledge before education is seen among the illiterate group, indicating the need to prioritize the illiterate and less-educated groups. This result indicates the effectiveness of education in improving knowledge and attitude since after there is no significant difference between women’s different levels of education and their knowledge and attitude after the education. However, women with higher education had a higher level of knowledge and attitude before the education.
In this regard, we can refer to the results of a study by Besu (2014), which showed that women with higher education have a higher level of knowledge about cervical cancer [21], or a study by Daher, who stated that as the level of education increased, the mean score of knowledge and attitude toward performing Pop-smear and health care increased [20]. Unlike the results of the present study, Tabeshian reports that an increase in education does not necessarily lead to an increase in knowledge, because he found that the knowledge of subjects with a bachelor's degree was better than that of those with higher education [17]. Therefore, it can be concluded that an increase in the level of education may cause an increase in knowledge, but an increase in education cannot necessarily cause a definite increase in knowledge.
Attitude and performance of employed people were significantly higher than those of non-employed people before education. However, after education, a significant relationship was not found between the mean scores of knowledge, attitude, and performance of employed and unemployed women. However, before education, employed women had a higher level of knowledge and attitude than unemployed women. Consistent with the results of the present study, the study by Daher (2019) in Saudi Arabia revealed a relationship between women's knowledge and their employment, as it revealed that employed women more than unemployed women deal with healthcare issues such as the Pop-smear test [20]. In this regard, the results of a study by Shrestha (2022) in Nepal showed that many women worldwide are deprived of free access to Pop-smear tests. Hence, although a person has a favorable attitude and motivation to perform a Pop-smear, the high cost of the Pop-smear test is a significant barrier to doing it [22]. It can be stated that employed women have financial independence and can better afford their treatment and care expenses [22, 23]. Also, due to the higher communication of employed women with other members of society, they have better knowledge, attitude, and performance regarding Pop-smears. Hence, special attention should be paid to sexual health and care of unemployed women.
In the present study, the mean score of knowledge of subjects who had a history of Pop-smear tests before and after the education was higher than that of subjects who had no history of Pop-smear tests. However, more than half of the subjects who participated in the present study (53%) had never had a Pop-smear test before. Given the statistical population of this study, it can be stated that Varamin women do not care much about their sexual health. This result is consistent with the results of studies conducted by Zarei, Ghalavandi, and Mohebi. In a study by Zarei (2010), the results indicated that women who had done at least one Pop-smear test had more knowledge than women who had not done this test yet [24]. Also, the study by Ghalavandi (2021) showed that the mean knowledge score of women who had a history of Pop-smear tests was higher [8].
A study by Mohebi revealed that education and frequent visits of women to health centers and communicating with the medical staff increase women's knowledge level [25]. Improving women's knowledge leads to a more accurate understanding of the barriers to performing a Pop-smear test (shame, embarrassment, fear, etc.) and an increase in sensitivity to the necessity of doing this test. Thus, repeated education in every referral of women to these centers can be effective in improving their knowledge. The present study also showed no significant difference between the attitude and performance scores of women who had a history of Pop-smear tests and those of women who did not have this history before education. Although the mean attitude score of the subjects who had a history of Pop-smear tests was more than that in women who had a history of Pop-smear after education, no difference was observed in the performance of these two groups.
Based on the results of a study by Jalilian, gaining more knowledge in older women can induce the belief that everyone is immune to health risks and threats by knowing a set of information, so there is no need to adopt preventive behaviors. In other words, this belief describes a person's understanding and attitude, weakening the adoption of any preventive behavior [26]. In this regard, the results of a study by Tadse (2020) in Ethiopia and Al-Mubarak (2016) in Sudan showed that women do not consider it necessary to perform screening tests just because they think they are healthy [15, 27]. Based on the results of the present study, after providing correct and valid education and improving the necessary knowledge, the incorrect beliefs and attitudes will be corrected and will increase the mean score of attitudes in women.
Consistent with these results, a study by Asgharnia showed that the mean score of the attitude of people who had a history of Pop-smear test and had acquired appropriate information in this field was higher than that of people who had not done this test [28]. Despite the change in the mean attitude score after the education in the present study, it seems that the time required to change the performance of women in this study should be more than one month. The present study also showed a relationship between the history of underlying disease and women's knowledge, attitude, and performance. Before the education, the knowledge level of people who had a history of disease was significantly higher than that of people who had no history of disease. However, after education, the level of knowledge of people who had a history of disease was lower than that of people who had no history of disease. It indicates the significant effect of education on the level of knowledge of people. Additionally, before and after the education, no significant relationship was observed between the mean score of attitude and performance and the history of the disease.
Consistent with these results, two studies conducted in Nepal (2022) and Ethiopia (2020) showed that having an underlying disease, especially sexually transmitted diseases, in women increases referrals to health centers, leading to more communication with the medical staff and a higher level of knowledge [22, 29]. Therefore, there is limited knowledge about diseases and treatment in areas where access to health and treatment is poor [22]. Based on the results of the present study, providing education by the medical staff increased the mean scores of knowledge and attitude of women who have taken measures to prevent cervical cancer by self-diagnosis or had done a Pop-smear test. However, no significant relationship was observed between the reasons for doing the Pop-smear test and the mean score of performance.
In this regard, the results of a study by Shrestha revealed that one of the crucial factors in changing women's knowledge and attitudes toward Pop-smear tests can be the advice of physicians and medical staff of the same sex (female). Thus, the advice of physicians and medical staff can be effective in improving women's knowledge and changing their attitudes [22].In this regard, the results of the studies conducted by Tabeshian (2018) and Bahri (2015) showed that most participants had done a Pop-smear on the physician’s advice [17, 30]. Other studies have shown that although women obtained the necessary information via cyberspace and mass media, they did not have sufficient and correct knowledge about prevention methods or risk factors [15, 20]. It seems that obtaining information through cyberspace and mass media cannot increase the needed knowledge of women sufficiently. Hence, education should be provided by qualified people or systems such as the medical staff in the health centers. The analysis of the results confirms the effectiveness of education in virtual space on the variable of knowledge of women referring to the health center. Although education is one of the primary ways of transferring information to people to improve knowledge, the appropriateness of educational content and the educational method significantly affect the effectiveness of learning [31].
In this regard, a study by Baghani Moghadam (2018) showed that the knowledge of women who received sufficient education about performing Pop-smear tests increased compared to before. The education also improved the health model structures of perceived sensitivity, perceived severity, and perceived barriers, which significantly affect the person's learning about a health practice [32]. Also, a study by Parsa (2016) showed a significant increase in the mean knowledge of women about cervical cancer, its causative factors, and performing a Pop-smear test after group education [33]. Moreover, the studies by Tahmasabi and Pirzadeh showed that the knowledge of women who were trained based on the health belief model increased significantly [34, 35]. Group education and counseling are much more attractive than individual education [31]. Also, education based on the health belief model, which is one of the best models to encourage people to gain knowledge and improve learning, is much more effective than traditional methods. Thus, it seems that acquiring knowledge requires appropriate education since education must be satisfactory, reassuring, attractive, accurate, and adequate to have a significant impact on people's learning [32].
This study also revealed a significant improvement in the mean attitude score of the subjects after the education. The results of the present study are consistent with those of studies by Heydari-Sarvestani and Hanifi. The study by Heydari-Sarvestani (2016) in Fasa showed that the behavioral motivation of women increased significantly after a planned education program and their attitude toward Pop-smear test became more positive. Thus, the significance of planned education in changing positive attitudes is highlighted [9]. Additionally, a study by Hanifi revealed that the motivation and attitude toward Pop-smear tests of women who received education through lecture and group discussion improved significantly [36].
One of the significant ways to change the attitude of people is to talk about their opinions and brainstorm in this area. Stating opinions and observing other people's reactions are significant ways to change attitudes [36]. Although some studies have indicated the positive effect of education on attitude, a study by Farsi revealed that although education improved knowledge of the subjects, it did not significantly affect their attitudes. Farsi stated that the short time of the study is the reason for not improving the attitude of the subjects. The lack of sufficient education, a negative attitude toward the examination, cultural problems, misunderstanding of the disease, and many psychosocial factors can affect the attitude of people and education alone is not enough to improve the attitude in society [37]. The present study also showed an improvement in the mean performance score of women after the education compared to before the education. In other words, women's performance regarding the follow-up of health care related to sexually transmitted diseases and the use of Pop-smear tests increased, meaning that women had been referred more for Pop-smear tests than before the education.
The result of the present study is consistent with those of other studies by Baghiani Moghadam, Parsa, and Heydari Sarvestani. In the study by Baghani Moghadam, women's knowledge about sexual health care and the significance and method of doing Pop-smear tests increased and it ultimately caused a significant increase in women's performance. Education caused an almost five-fold increase in the rate of performing Pop-smear tests. Before the education, only 12.6% of women had performed a Pop-smear. However, after the education, it increased to 63.8% [32]. Similar results were reported in the study by Parsa. In the study by Parsa, rural women received group education and counseling and their performance regarding Pop-smear tests increased significantly. There were many barriers to women doing Pop-smear tests. These barriers included the fear of doing Pop-smear tests, the cost of commuting, lack of knowledge, insignificance, embarrassment, and misbehavior of health staff. Despite these barriers, education showed significant and positive impacts on their performance [33].
In the study by Heydari Sarvestani, planned education increased knowledge, changed attitudes, and ultimately increased performance and improved behavior regarding the Pop-smear test. This study indicated the direct effect of the planned educational method, highlighting the efficiency of this type of educational method [9]. Despite the effect of education on improving women's performance in Pop-smear, as reported in different studies, the results of the present study are not consistent with the results of a study by Tabeshian (2009) in Isfahan. Although the mean score of knowledge and attitude increased significantly after the education in the study by Tabeshian, no difference was observed before and after the education regarding the mean performance score of the subjects [17].
In this regard, we can refer to the statistical population in the study by Tabeshian since it included only people with a university education. Tabeshian stated that female teachers did not have enough time to do Pop-smear tests due to the lack of time and high workload. However, it is debatable that people with a bachelor's degree have done Pop-smear tests more than people with a master's degree. Additionally, people with older age had better performance. Tabeshian explained it in this way that people who are near the end of reproductive age are more concerned about sexual health and fertility [17]. Generally, the lack of sufficient knowledge or the combination of knowledge with an inappropriate attitude are some of the barriers affecting performance and behavior change, in addition to the appropriate period for a change in performance. Thus, particular attention should be paid to the education method to create a positive attitude and knowledge since appropriate knowledge and the right attitude can create more effective changes in behavior and performance [32]. Given what was stated, it can be concluded that providing proper education based on correct and sufficient scientific materials with attractive methods can cause positive changes in attitude, and thus, cause significant improvement in people's performance.
Limitations
The limitation of the present study was to ensure that people read the educational content provided by them. In this regard, we tried to ensure this issue as much as possible by asking three questions about the educational content.